Finger-head.



G. & J. H. TRAP PIER. FINGER HEAD APPLICATION FILED JUNE 15. 1908.

936,243, Patented Oct. 5, 1909.

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HENRY G. FBAPPIER AND JOSEPH H. FBAPPIER, OF 'WOECESTER, MASSACHUSETTS.

FINGER-HEAD.

To all whom "it may concern;

Be it known that we, HENRY G. FRAPPIER and JOSEPH H. FRAPPIER, citizensof the United States, both residing at Worcester, in the county oflVorcester and State of Massachusetts, have invented a new and useful Finger-Head, of which the following is a specification.

This invention relates to a finger-head and improved connection thereofwith the threadboard of a spinning frame.

The principal objects of the invention are to provide a simplified sheetmetal finger head of such a character that it can be stamped out ofsheet metal in a very economical manner, and made in such a way that itshall have integral means for holding it in horizontal position solocated that the same will be protected by the outwardly extending edgesof the finger-head itself from accumulation of lint and the like, and soformed that there will be no place around the hinge-pin on which thelinger-head is mounted for the lint to gather or drop down through onthe parts below; also to provide an improved means for adjustablyclamping the pig-tail so that it may easily be moved to all desiredpositions without weakening the bolt by which it is attached and withoutnecessitating the use of washers thereon; and to provide means on thepig-tail for reduc ing the friction of the yarn.

Further objects and advantages of the invention will appear hereinafter.

Reference is to be had to the accompanying drawings which show one formin which the invention may be embodied, and in which Figure 1 is a planof the same; Fig. 2 is a side elevation; and Fig. 3 is an end view.

The finger-head is intended to be applied in a well-known manner to thethreadboard or rail 10 of a spinning frame. For this purpose a pluralityof individual hinge members 11 are employed, one for each finger head12. Each hinge member is provided with integral projections 13 which arebent around at the top thereof so as to journal the hinge pin 14. Thefinger-head is also provided with a plurality of projections 16 and 17.The projections 16 are bent outwardly around the hinge pin so as to besecured thereto or to turn thereon as may be desired, which securelyhinges the finger head to the hinge member. Vith this construction itwill be seen that the finger Specification of Letters Patent.

Application filed June 15, 1908.

Patented @et. 5, 19(19.

Serial No. 438,478.

head is readily removable individually with its hinge member from thethread-board, so thatit may be renewed or replaced in a convenientmanner and adjusted to proper position if required, without displacingany other finger heads.

The additional rearward projection 17 is shown between the projections16, but extending like them around over the top of the hinge pin. It isthen brought vertically down when the thread board is in horizontalposition, so to abut against the hinge member and form a stop to limitthe downward swinging motion of the finger head. It will be seen thatthis projection or stop is located well in under the finger head and isprotected by the outwardly extending side edges thereof from theaccumulation of lint and the like. It will also be seen that as itextends around over the top of the hinge pin and is located in verticalposition, it affords no place where the lint can gather or drop down onthe parts below. 'iherefore, it atlords a convenient, simple. andpositive stop to bring the finger head always into a horizontal positionand one that will have the same effect after long use as when first puton.

The finger head is formed from a flat piece of sheet metal and has noflanges at its edges so that it can be made simply by cutting andwithout bending, except to form the projections 16 and 17. This is avery simple and inexpensive construction.

The finger-head is provided with a perforation 18 for receiving the bolt19. This bolt is provided wit-h screw threads 20 near its end and with ahorizontal perforation above the screw threads. In order to preserve thestrength of this bolt and not make it necessary to provide one ofexcessive size, the screw threads are not out very far up on it, but thenut 22 which is applied to it is counter-bored at 23, so that the upperedge of the nut can bear directly on the pig-tail 2% which passesthrough the perforation in the bolt without weakening the bolt andwithout necessitating the use of a washer. This simplifies andstrengthens the construction of the device.

The pig-tail preferably extends straight forward to the outer endthereof and then is bent substantially at right angles to form a bar 25which is bent upwardly to form a reversely extending parallel bar 26which projects over the straight forwardly; ex-

tending shank of the pig-tail, and then the end 27 is bent down on theoutside of the latter. On the reverse bar 26 is mounted an anti-frictiongrooved roller 30. The flanges of this roller are adapted to engage thestraight shank of the pig-tail on one side, and the bend between thebars 25 and 26 on the other. These two parts thus act to keep the rollerin position on the pig-tail, and the roller acts to reduce the frictionof the thread passing over the same. The roller is countersunk at oneend at 31, so that no special care will have to be taken in bending thepig-tail around to provide a sharp corner, and so that if the corner isnot sharp the roller will not bind.

It will be seen that the pig-tail affords a means whereby the positionof the thread can be readily adjusted in all directions so as ordinarilyto avoid any adjustment of the finger-head itself, and that the wholedevice is exceedingly simple and inexpensive in construction and welladapted to perform the ordinary functions of thread-boards in additionto those which have been mentioned above.

lVhile we have illustrated and described certain forms in which theinvention may be embodied, we are aware that many modifications may bemade therein by any person skilled in the art without departing from thescope of the invention as expressed in the claims. Therefore, we do notwish to be limited in all respects to the particular details ofconstruction shown, but

What we do claim is 1. The combination with a hinge member havingintegral sockets at the top, of a hinge. pin in said socket and a fiatsheet metal top plate having a plurality of rearward projections allbent down over said hinge pin, certain of said projections inside theedges of the top plate constituting a stop to engage the hinge memberand others being bent around the hinge pin to pivotally support the topplate, said stop being located back from the edges of the top plate soas to be protected by the edges of the top plate from the accumulationof lint, and the like.

2. A finger-head having a vertical bolt extending therethrough from thetop provided with a horizontal perforation, a pigtail extending throughsaid perforation, and a nut having a counter-bored screw-thread adaptedto be mounted on said bolt to directly engage the shank of saidpig-tail, whereby a bolt can be employed screwthreaded only part way tothe perforation, without a washer.

3. A finger-head having a bolt extending therethrough from the topprovided with a horizontal perforation, a pig-tail extending throughsaid perforation, and a nut having a counter-bored screw-thread adaptedto be mounted on said bolt o directly engage the shank of said pig tail,whereby the nut can be employed without a washer, said pig-tailextending straight forward from the bolt and then being bent to one sidearound and up over the forward extending portion and having a roller onsaid last named part.

i. A finger-head having a pig-tail there on having a shank extendingstraight for-- ward and bent therefrom substantially at right-angles andup reversely over the shank and then downwardly and having a roller onsaid revcrsely bent portion, one edge of which engages the shank to keepthe roller in position, said roller being countersunk at the other end.

In testimony whereof we have hereunto set our hands, in the presence oftwo subscribing witnesses.

HENRY G. FRAPPTER. JOSEPH H. FRAPPIER.

Witnesses Josnrrr Gornrrn, C. FORREST W'nsson.

